BA Insight, a New York-based developer of enterprise search technology with federal offices in Reston, said on Wednesday it has raised $4.5 million in a new round of funding. Previous backers Milestone Venture Partners, Osage Venture Partners, Paladin Capital Group and Originate Ventures participated in the round, which increases the company's total funding to $15.7 million. BA has clients in industries such as legal, oil and gas and life sciences.